In this study, based on the area balancing technique and geometrical relationship, we developed a 2-D model and related equation to calculate pore space of fractures associated with fault development through constructing a detachment void space model in a fault-bend fold and a fracture pore space to void space exchange model.

Review for void detective methods of the concrete pavement;

Research on the concrete pavement void and load transfer mechanism;

Void Detection under PCC Pavement;

Acoustic Identifying of Rigid Pavement Cavity Based on Integrated Neural Networks;

Analysis on influencing factors to deflection of slab with cavity;

A case is used to illustrate the applications of GPR that include pavement thickness measurements and voids detection under concrete slabs.

For the first time, both at home and abroad, fiber sensing system realized long-term monitoring and detected the occurrence and development course of disengaging at the interface of steel tube and concrete, a.

Sensing of disengaging at interface of steel tube-confined concrete, which now can be realized by distributed optical fiber sensing, is important for structure safety.

However, due to various reasons, our country\'s early cement concrete pavement life significantly lower than design life, early disease such as fracture and disengaging are widespread.